The 3-in-1 Rubber Lens Hood from Kaiser is designed for lenses with focal lengths anywhere between equivalent&41;&46; Because their flexible yet sturdy rubber construction allows them to fold in on themselves and hold that position they are considered 3-in-1&46; When left in their unfolded longest position they are compatible with telephoto or long zoom lenses&46; When folded in once they work for standard focal length lenses and when folded back twice they serve for wide-angle lenses&46; A metal screw-in mount firmly attaches them to diameter lenses and in their fully retracted position they can be kept on the lens permanently for added protection against bumps and scratches&46; Made fro 4001072068239